lscapeenhanced
Fixes the handling of \textheight and \textwidth on landscape pages in lscape and can load pdflscape via an option.
The Package lscapeenhanced has started as hack module of the former
KOMA-Script package scrhack years ago to fix an issue when
using package lscape with KOMA-Script packages scrlayer or
scrlayer-scrpage. This became necessary because package lscape has a
somehow strange handling of \textheight resp. \textwidth at landscape
pages. This is not only an issue with KOMA-Script but also other packages,
e.g., showframe. Package lscapeenhanced solves this issue. This
is a really small change and best would be, if the lscape author would at
least include this change optionally. The user interface of lscape remains
usable unchanged.
Additionally lscapeenhanced provides an option to not only load package
lscape but pdflscape. So if you want the functionality of pdflscape you
don't need to load lscapeenhanced and pdflscape but only lscapeenhanced
with option pdflscape.
The package is part of the “Third Party Enhancements” hosted on GitHub. Further information can be found in the CTAN catalog entry.